Save csv files to USB using SCPI?

I am trying to program a Fieldfox N9912A to obtain spectrum data. What I want to do is to capture a wide range of spectrum in pre-defined chunks, and save the data. I want to reduce the latency as much as possible. I understand that I could read the data TRAC:DATA? command, but am wondering if there is any SCPI command to save the trace directly to a USB drive instead of reading it to the PC? Is there any recommended procedure to achieve what I want?